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L-50
LUXMETER
INSTRUCTION MANUAL
SONOPAN Sp. z o. o.
ul. Ciołkowskiego 2/2, 15-950 Białystok, Poland
phone/fax +48 85 742 36 62
poczta@sonopan.com.pl
http://www.sonopan.com.pl

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Summary of Contents for SONOPAN L-50

  • Page 1 L-50 LUXMETER INSTRUCTION MANUAL SONOPAN Sp. z o. o. ul. Ciołkowskiego 2/2, 15-950 Białystok, Poland phone/fax +48 85 742 36 62 poczta@sonopan.com.pl http://www.sonopan.com.pl...
  • Page 2 - 1 - STANDARDS Luxmeter L-50 fulfills recommendations of International Commission On Illumina- tion (CIE), published in publication no. 69-1987: „Methods of characterizing illuminance meters and luminance meters: Performance, characteristics and specifications”. Device was approved by Polish Central Office of Measures (decision no.
  • Page 3: Meter Characteristics

    - 2 - METER CHARACTERISTICS Luxmeter L-50 is designed to measure illuminance of natu- ral and artificial light, in the range 5.0 ÷ 199 900 lx. It can be used in home, light industrial and heavy industrial envi- ronment, both indoors and outdoors. It is a universal device of wide use (e.
  • Page 4 - 3 - Reading of measured value is done on the LCD, directly in lux or kilolux. Exceeding the measuring range (overload) is indicated by one on the first digit and extinguishing of re- maining digits. Luxmeter is equipped with HOLD function, which temporary suspends measuring proc- ess.
  • Page 5: Technical Specification

    - 4 - TECHNICAL SPECIFICATION • accuracy class A (CIE) • accuracy ≤ 2.5% (CIE) • spectral matching: ’ ≤ 2% (CIE) • cosine correction matching: ≤ 1.5% (CIE) • reading range: ÷ 199 900lx • measuring range: 5.0 ÷ 199 900lx in subranges: (200lx) 5.0 ÷...
  • Page 6: Basic Accessories

    - 5 - BASIC ACCESSORIES • photometric probe, • battery, • carrying case, • instruction manual, • warranty card, • photometric probe relative spectral sensi- tivity chart. ADDITIONAL ACCESSORIES • photometric probe handle. OPERATION • Connect covered photometric probe to the luxmeter. Make sure that cover on the probe is completely sealed •...
  • Page 7: Recomendations For Instrument Use

    - 6 - • To freeze reading use hold key. Continue of the measure is possible after next pressing of that key. WARNING: Calibration knob is located on the left side of the instrument. Chang- ing calibration adjustment will void calibration certificate. RECOMENDATIONS FOR INSTRUMENT USE •...
  • Page 8: Battery Replacement

    MAINTENANCE AND REPAIRS Luxmeter L-50 does not require any special maintenance except to follow the rec- ommendations for instrument use. User only need to check the condition of the bat- tery. All repairs of the instrument are performed by manufacturer.

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